Benegas played for Vicov and Boca Juniors in his youth career. He first played for Boca's senior squad during the 2016 Argentine Primera División season, making his debut in a defeat to Argentinos Juniors. He subsequently participated in Boca's final three fixtures of the season. In July 2016, Benegas joined fellow Primera División side Quilmes on loan. His Quilmes debut came on 10 September against Huracán. In his third appearance, Benegas scored his first career goal versus Olimpo. In August 2017, Benegas was loaned out to Primera B Nacional side San Martín.